V2EX snrna

SnRNA

定义 Definition

snRNAsmall nuclear RNA(小核RNA) 的缩写,指一类位于细胞核内的短RNA分子,主要参与前体mRNA(pre-mRNA)的剪接(splicing),是剪接体(spliceosome)的重要组成部分(常见如 U1、U2、U4、U5、U6 snRNA)。

发音 Pronunciation (IPA)

/es en r en e/

例句 Examples

snRNA helps remove introns from pre-mRNA.
snRNA 有助于从前体 mRNA 中去除内含子。

Defects in snRNA processing can disrupt spliceosome function and lead to disease.
snRNA 的加工缺陷可能破坏剪接体功能并导致疾病。

词源 Etymology

snRNA 来自生物学术语 small nuclear RNA 的首字母缩写:small(小的)+ nuclear(核内的)+ RNA(核糖核酸)。该术语用于区分核内参与剪接的一类小RNA,与其他类型的小RNA(如 miRNA、snoRNA)相区别。

相关词 Related Words

文学与著作中的用例 Notable Works

  • Bruce Alberts et al., Molecular Biology of the Cell(《细胞的分子生物学》):在RNA加工与剪接体章节中讨论 snRNA(如 U 系列 snRNA)的结构与功能。
  • James D. Watson et al., Molecular Biology of the Gene(《基因的分子生物学》):介绍真核基因表达调控与 pre-mRNA 剪接时涉及 snRNA。
  • Joan A. Steitz(等)相关经典论文:早期阐明 snRNP/snRNA 与 mRNA 剪接关系的研究文献中频繁出现该术语。
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